body {
    font-family: 'Arial', sans-serif;
    background-color: #f0f4f8; /* 浅蓝色背景 */
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.welcome-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background-color: #ffffff; /* 白色容器背景 */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    text-align: center;
}

h1 {
    color: #003366; /* 深蓝色标题 */
    font-size: 28px;
    margin-bottom: 20px;
}

h2 {
    color: #000000; /* 蓝色标题 */
    font-size: 24px;
    margin-bottom: 10px;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    margin: 10px 0;
}

a {
    color: #0077cc; /* 蓝色链接 */
    text-decoration: none;
}

a:hover {
    color: #005599; /* 深蓝色链接悬停 */
}